As Vienna implies specificity of pain is not very good as there are many variations to location and degree. But left arm pain has been described as radiating (wave like) to the left arm, but other pain to the arms and back can be a heart problem. Also, if the pain goes away and not seem to return does not rule out you may have had heart muscle damage from an MI. A heart attack can be with or without symptoms!
What ever kind of pain you have and where ever you must see your doctor, better to be safe then sorry.